Cook pasta according to package directions. Drain well and set aside.
Season chicken breasts with the Cajun seasoning.
Preheat oven to 400 degrees F.
Brush your cooling racks with olive oil and place them on top of the baking sheet. Arrange the chicken breasts on the oven rack and cook them in the oven for 25 to 30 minutes until crispy.
In a large skillet over medium-high heat, add a few tablespoons of olive oil. Add the onions, mushrooms and bell peppers.
Cook the veggies for about 5-6 minutes until a bit softened.Add the garlic and cook for a minute. Pour the wine or chicken stock and cook for a minute, stirring frequently to avoid sticking.
Add the tomatoes, heavy cream and milk. Stir and bring to a boil. Stir constantly until thickened.
Add the cooked pasta to the sauce.
Bring out the Cajun chicken and let it rest for 5 minutes before slicing into strips.
Serve the chicken with pasta, season with salt and pepper and garnish with chopped parsley.